Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 03dc985b52725fd8…

MALICIOUS

Office (OLE) / .DOCX

180.3 KB Created: 2020-09-18 08:59:00 Authoring application: Microsoft Office Word
MD5: 937c620e0d0209afd06933073bd2e0e8 SHA-1: 38da47ec73097c73feabe3b0349e4703fa8d16e5 SHA-256: 03dc985b52725fd858b9aa8c59742e209b646a9bc6d49f57884f15a187e2bc3d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The file is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that executes automatically. Heuristics indicate the use of CreateObject and p-code execution, suggesting the macro is designed to perform malicious actions. The ClamAV detection as 'Doc.Downloader.Generic' strongly implies the macro's purpose is to download a secondary payload. No specific URLs or external hosts were directly extracted, but the presence of the macro itself is a primary indicator of malicious intent.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9763419-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9763419-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
2cacffa870bc163e0d80063dbad890b2628b581c624e40730ba57a6c44f2b3d2		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20834 bytes

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